Insulating-tube machine.



0. LE 6. FORTESCUE. INSULATING TUBE MACHINE. a APPLICATION FILED AUG- 71911. 1,137,853.

mm 1 Q 4 m Pater/cad May 4, 191-5.

4 SHEETSSHEET1 3 ..Y. M w\ S &

MM Q

. -l||ii Inn 11 lml WITNESSES: I

"ATTORNEY C. LE G. FURTESCUE.

INSULATING TUBE-MACHINE.

H APPL'ICATION FILED AUG-7 19H. I 1,137,853. Patented May 4:, 191

4 SHEETS-SHEET 2 ATTOR N EY WITNESSES:

0.. LE e. FORTESCUE.

INSULATRNG TUBE MACHINE.

APPLICATiON FR ED AUG-7.1911.

Patented May 4, 1915.

4 SHEETS-SHEET 3.

WHNESSES:

ATTORNEY C. LE G. FORTESCUE.

INSULATING TUBE MACHINE. APPLICATION 'HLED AUG. 1, 191:.

Patented May 4, 1915.

4 SHEETS-SHEET 4.

WITNESSES:

ATTORNEY,

till

CHARLES LE G. FOETESCUE, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TC VEST-INGHGUSE ELECTRIC AND MANUFACTURING COMPANY, A GORPORA'ZION OFPENNSYLVANIA.

INSULATING-TUBE MACHINE.

L} 37355; Specification of Letters Patent. I Patg t igd fig- Q 1g}implication filed August 2, 1911.

To 51, 1 unlit-2;; it may concern Be known that l. CHARLES LE G.Foni'nscin, a subject oi the ting of Great Britain, and a rc'ideutoiPittsln "h, in the county of -xllcghcny and 'tltate o ennsylvania, haveinrcntcd a new and useful Improvement in insulating-Tube lilachines, ofwhich the following is a specification.

My invention relates to machines for manufacturing tubes orhollowcylinders by a winding proccss, and it has special. reference to suchmachines as are adapted to produce insulating tubes of relatively largediameters.

The object of my invention to provide a machine of the cass aboveindicated which shall be readily adjustable for producing very hardinsulating tubes of widely vary ing' diameters.

lln Patents Ties. 832K353 and 8.385%, granted July :5, i307. to the ll'cstinghouse Electric 8; Itiauutacturiirn Company, on applications filedby Emil l'lae'i'ely, are shown and described machines which ar: adaptedto produce particularl excellent insulating tubes. The. insulatingstructures which are usually composed oi' paper. mica and shellac,

in other suitable binder, are suitably 1p llillll the tube-Formingprocess. The process conr sts in windinga number of convolutions ofsuitable i'abric closely about a mandreL which forms a part of themachine, l1l\\l'i1f the size and shape desired for .iing in the tube.heat and pres-sure being applied as the convolutions oi insulationrarcwrapped upon the mandrel in order to f .se the layers or wnvolutionstogether and make a solid and durable structure.

ccordincj to my present invention. 1 pro vide a machine w ich adaptedfor the same process; or similar processes oi manufacturing" insulating:tulics as that set forth in the patents sun's referred to, but. insteadof providing a mandrel corrcspondin in size to the openiun'ot the tube.l providc a large number of n'uidc rolls in addition to a pair ofpressure rolls and make th se parts radially adjustulilc rclatirc to acommon ElXlfi in order to adapt the nnn-hinc to tlic uni n-- tacturc oflarge tubes of widely arying diameters.

it. will be rcadi v uodertood that lar 'e tubes pt in}: great mechanicalstrength and high insulatins qualities, are particu- Serial No. 642,875.

larly useful in the manufacture of core type transformers and variousother electric apparatus. By the use of my invention I am able to make alarge number of different sizes of tubes by means of a single machineinstead of employing a large number of iachincs.

rigure 1 of the accompanying drawings, is a sectional elevation, in alongitudinal plane, of a machine constructed in accordance with myinvention. Fig. 2- is an end eleva ion, looking iii-the direction ofarrow a of h 1. Fig. 3 is a sectional view on the line Hllll of Fig. 1,looking in the direction of arrow 1), and Fig. :t is an end elevation,looking in the direction of the arrow 0 of Fig. l. 5, t3 and T aredetail views of the driving connections for the rolls, and Fig. 8 is aplan view of the entire machine.

.llferring-to the drawings, the structure here shown comprises atationary base or bed plate 1, to which standards or b aring brackets 2and are secured, a central adjusting shaft 4, a stationary quill 5,surrounding the shaft and secured to the bracket 2, a pair of coope'ating adjustable pressure rolls 6 and 7. electric driving motor 8, aplurality of adjustable guide rolls 9 and suitable gearing.

The adjusting shaft '1. is supported, at one end, in a bearing 10 whichis provided in the bracket and, at its opposite end, in a bearing 11provided in the outer end of the quill 5. The shaft is provided with apain of beveled gear wheels 12 and 13 and may be rotatively adjusted bymeans of a hand wheel 1%.

The bracket 2 is provided with an annular projection 15, to which thequill 5 is secured by bolts 16, and an annular projection 17 which areconcentric with the shaft l and are of materially vdifferent diameters,the projection being comparatively near the shaft l. A plurality ofradial adjusting screws 13 are rotatirely supported, in substantiallythe same plane. in bearings proided in the projections 15 and 1'? andeach of them is provided, at its inner end, with a beveled pinion 19which meshes with the beveled gear wheel 12 on the shaft At the outerend or" the quill 5, a ring or bearing support 20 is held concentricwith the shaft 4 by means of spokes or arms 21 and is provided with aplurality of outtions 22 in which internally threaded quills or sleeves23' are rotatively mounted. lhe

' sleeves 23 extend through suitable holes in laterally the ring 20 andteeth are cut at their inner ends to constitute beveled pinions 24 whichcooperate with the beveled gear wheel 13'.

' A plurality of screw-threaded rods or adjusting screws 25 are screwedinto the outer ends of the sleeves 23 and support bearing blocks 26 attheir outer ends.

A plurality of bearing blocks or nuts 27 are screwed onto the adjustingscrews 18 so that, as the screws are rotated, the bearing blocks or nutsare adjusted toward the axis of the shaft 4 or away from it. The bearingblocks 26 are similarly adjusted when the sleeves 23 are rotated, byreason of the screw-threaded relation between the screws 25 and thesleeves 23.

' Since the adjusting screws 18 are all geared to the shaft 4 by meansof the gear wheel 12 and pinions 19, and since the sleeves are similarlyconnected to the shaft 4 by gear wheel 13 and pinions 24, a rotativeadjustment of the shaft 4 produces a concurrent adjustment of thebearing blocks 26 and the bearing blocks 27. The gear ratios and thepitch of the screw threads are so determined as to make the adjustmentof the two sets of blocks 26 and 27 not only concurrent but also equalin degree.

The guide rolls 9 are rotatively supported in the bearing blocks 26 and27 and are preferably uniformly spaced about the center of the shaft 4at equal distances therefrom so that their outer surface linesconstitute spaced lines of a cylindrical surface, as shown in Figs. 2and 3 of the drawings, except that the pressure roll 7 is substituted inposition for one of the guide rolls. The pressure roll 7 is supported inbearing blocks 26 and 27 a which correspond to the blocks 26 and 27 ofthe guide rolls and are similar to them except that the block 27 isprovided with a lug 28 which projects upwardly and from it andconstitutes a bearing for a short shaft 29.

The pressure roll 6, which cobperates with the roll 7, is rotativelysupported in bearing blocks 30 -and 31 which. are yieldingly mounted ona cross piece 32. The cross piece 32 is adj ustably supported betweenthe .brackets 2 and 3 by means screws .33 and 34 which are nonrotativelysecured to the cross piece 32 at their lower ends and pass freelythrough suitable holes in a stationary cross beam 35 into bevel gearnuts 38 and 39. The nuts are prevented from riding up on the bolts bybrackets 36 and 37 and are driven by bevel gears 40 and 41, The gears;40- and 41, are driven synchronously' by any suitable means, such as ahand wheel 42, to which they are connected,

of. adjusting T through gears 43 and 44, shaft 45, beveled gears 46 anda shaft 47, the two gears 43 being tied together by a shaft 48..

In order to support the screws 25 when the machine is in operation, Iprovide a series of adjustable rods 49 which are screwthreaded through aring or'annular projection 50 of the stationary bracket 3, the innerends of which rods are tapered like the dead I 1 me roll. 7 is driven bythe electric motor 8' through any suitable gearing, the arrangementillustrated in the drawings comprising a sprocket wheel 52 mounted on ashort shaft 74 and geared to the shaft of the motor 8, a sprocket wheel53 rotatably sup-' ported on a projection 54 of the bracket 2, a 'chain55 connecting the two sprocket wheels and an intermediate sprocket wheel56 which is mounted on the outer end of shaft 29 and operates equallywell at any' point between the sprocket wheels 52 and 54, therebypermitting theroll 7 to be driven in any position to which it may beadjusted.

The roll 6 may be similarly driven by means of apair of spaced sprocketwheels 57 and 58 which are respectively mounted on shaft 59 andprojection 60 and are connected by a chain 61, the sprocket wheel 58being so geared to the motor shaft as to produce the proper rotation ofthe roll 6 relative to the roll 7. The bearing block 30 of the roll 6 isprovided with a projection 62 inwhich a short shaft 03, corresponding tothe shaft 29, is supported and is geared to the roll 6 at one end and isprovided with a sprocket wheel 64 at the opposite end which is locatedbetween the s rocket wheels 57 and 58 and is driven by the chain 61.

The operation of themachine is as follows: The guide rolls9 and thepressure roll 7 are adjusted to correspond to the inside diameter of-theinsulating tube which it is desired to produce by suitably rotating thehand wheel 14. The correct be accurately determined by cutting a stripof flexible card-board or other similar maposition may they are adjustedand before the winding of i the tube is commenced.

After the guide rolls and the roll 7 are set, the rods 49 are set inposition to support the outer ends of the screws 25 and the roll 6 islowered into contact With the roll '7 by adjusting the hand wheel 42.Thin paper, or other suitable fabric of a width corresponding to thedesired length of tube, is then fed through the pressure rolls 6 and i'and is wrapped around the guide rolls 9. After one convolution of thepaper, or other fabric, is wound upon the rolls, the motor is operatedat full speed and the paper or other fabric is wound into a tube, theprocess being continued until the desired thickness of tube is secured.As the paper or other fabric is fed into the machine, shellac, or othersuitable binder, is applied by a brush or otherwise, in order to producea ver solid insulating tube. 7

instead of applying the binder in the form of a liquid, the fabric ofwhich the tube is built may be previously prepared for the purpose andadapted, under heat and pressure, to fuse the layersor con olutions ofthe tube together and make a solid, durable structure.

Since the roll 6 is yieldingly supported, the bearing blocks 30 and 31,being provided with projections and 66, which extend loosely throughsuitable holes in the cross member 32, and springs 61" and 68 being interpo sed between the bearing blocks and the cross member, the pressurebetween the rolls may be adjusted merely by turning the hand wheel 42.

In order to heat the tube during the proc ess of manufacture,-the roll 7is provided with an electric heater 69, theterminals of which arebrought out through collector rings 70 and stationary brushes 71 whichare connected to external circuit conductors 72 and 7-3. Both of therolls may be heated, if desired.

Vhen the tube is completed, the roll 6 is moved away-from the roll '7and the hand Wheel let is rotated to more the rolls 9 and the pressureroll 7 inwardly. This action sepa ates the screws25 from the stationarysupporting rods l9 and permits the tube to be removed at the oppositeend "of the machine from the motor 8, the conductors 72 and 73beingdetached from the heating conductor 69 in order to permit of suchremoval.

The machine illustrated may, of course,

7 be utilized for any suitable purpose, and its structure may bemodified in detail, without departing from the spirit of my invention.Consequently, I desire that only such limitations shall be imposed asare indicated in the appended claims.

I claim as my invention:

1. A tube machine comprising a plurality of guide rclls wdisposed in theform of a hollow cylinder, pair of cooperating pressure rollshaviug'their engaging surfaces in the periphery of the cylinder to whichthe.

outermost lines of said guide rolls belong,

of guide rolls disposed in the form of a hollow cylinder, a pair ofcooperating pressure rolls having their axes in a radial plane and theirengaging surfaces in the periphery of the cylinder to which theoutermost lines of said guide rolls belong, and radially adjustablemeans for supporting the ends of the guide rolls and one of the pressurerolls.

A tube machine comprising a plurality of guide rolls disposed in theform of a hollow cylinder, a pair of cooperating pressure rolls havingtheir engaging surfaces in the periphery of the cylinder to which theoutermost lines of said guide rolls belong, means for oppositely drivingthe pressure rolls, and means for radially and concurrently adjustingthe positions of the guide rolls and one of the pressure rolls.

' l. A tube machine comprising a plurality of guide rolls disposed inthe form of a hollow cylinder, a pair of cooperating pressure rolls haing their engaging surfaces in the periphery of the cylinder to whichthe outermost lines of saidguide rolls belong, means for radially andconcurrently adjusting one of the pressure rolls and the guide rolls,and independent means for adjusting the position of the other pressureroll.

A tube machine comprising a base and a stationary bracket or pedestalsecured thereto, a substantia ly horizontal adjusting sh 1ft rotatablysupported by the pedestal, a stationary quill or sleeve surrounding theshaft and secured to the pedestal, a plurality oi radial screwsrotutably supported in a plane substantially er naidicular to the centerof the shaft, a second set. of adjusting screws similarly supported in aparallel plane, interposed gearingbetween the screws and the adjustingshaft, and a plurality of rolls so supported by the radial screws thatan adjustment of the shaft ctl'ccts concurrent adjustment of the rolls.

a. A tube machine comprising a base, a stationary bracket or pedestalsecured thereto, a substantially horizontal adjusting shaft rotutablysupported by the pedestal, a stationary quill or sleeve surroiuiding theshaft and secured to th* pedestal, a plurality of radial screwsrotatably supported at the inner end of the sleeve or quill in a planesubstantially perpcmlicular to the shaft, a second set of radial screwssimilarly supported at the outer end of the sleeve or quill, a pluralityof bearing blocks supported by the radial. screws, rolls rotatablysupported in the bearing blocks and substantially parallel to the shaft,and means operated by the adjusting shaft for concurrently rotating theradial screws.

I rotatably supported by the pedestal, a stationary quill or sleevesurrounding the shaft and secured to the pedestal, a plurality of radialscrews rotatably supported at the inner end of the sleeve or quill in aplane substantially perpendicular to the shaft, a second set of radialscrews similarly supported at the outer end of the sleeve or quill,

a plurality of bearing blocks supported by theradial screws, guide rollsrotatably supported in the bearing blocks in the form of a hollowcylinder concentric with the adjusting shaft, a pressure rollcorresponding in mounting and adjustment to the guide rolls, and aseggnd pfessureroll cooperating with the first.

8. Atube machine comprising a base, a stationary bracket or pedestalsecured thereto, a substantially horizontal adjusting shaft rotatablysupported by the pedestal, a stationary quill or sleeve surrounding theshaft and secured to the pedestal, aplurality of radial screwsrotatively supported at the inner end of the sleeve or quill in aplanesubstantially prependicular to the shaft, 21 second set of radial screwssimilarly supported at the outer end of the sleeve or quill, a pluralityof bearing blocks supported by the radial screws, guide rolls rotativelysupported in the bearing blocks in the form of a hollow cylinderconcentric with the adjusting shaft, a pressure roll corresponding inmounting and adjustment to the guide ro1ls,.a second pressure rollcooperating with the first, and means for oppositely driving thepressure rolls.

9. A tube machine comprising a base, a stationary bracket or pedestalsecured thereto, a-substantially horizontal adjusting shaft rota tivelysupported by the pedestal, a stationary quill 0r sleeve surrounding theshaft and secured to the pedestal, a plurality of radial screwsrotatably supported at the inner end of the sleeve or quill in a planesuhstantially perpendicular to the shaft, :1 second set of radial screwssimilarlysupported at the outer end of the sleeve o-r quill, a pluralityof bearing blocks supported by the radial screws, guide rolls rotatablysupported in the bearing blocks in the form of a hollow cylinderconcentric with the adjusting shaft, a pressure roll corresponding inmounting and adjustment to the guide rolls, a second pressure rollcooperating with the first, independent means for adjusting the secondpressure roll, and means for driving the pressure rolls irrespective ofthe positions to which they are adjusted.

10. A machine comprising a plurality of guide members disposed in theform of a hollow prism and together adapted to consti-' tute a windingcore, and radially adjustable.

cooperating pressure members having their engaging surfaces in theprism.

113A machine comprising a plurality. of guide members disposed in-the.form of a stitute a Winding core, and independently adjustable andcooperating pressure rolls having their axes in a. radial plane andtheir engaging surfaces in the outer periphery of the prism.

12. A tube machine comprising a plurality of guide rolls disposed in theform of a hollow cylinder and together adapted to constitute a windingcore, and a pair of positively driven cooperating pressure members facesin the periphery of the cylinder and means for radially and concurrentlyadjusting the positionsof the rolls and the pressure members. Y

In testimony whereof, I have hereunto subscribed my name this 31st dayof July,

CHAR-LES LE G. FOR-TESCUE. Witnesses R. J. DEARBORN, B. B. HINES.

the outer periphery of hollow prism andtogether adapted to con-

